Skip to content
    Moz logo Menu open Menu close
    • Products
      • Moz Pro
      • Moz Pro Home
      • Moz Local
      • Moz Local Home
      • STAT
      • Moz API
      • Moz API Home
      • Compare SEO Products
      • Moz Data
    • Free SEO Tools
      • Domain Analysis
      • Keyword Explorer
      • Link Explorer
      • Competitive Research
      • MozBar
      • More Free SEO Tools
    • Learn SEO
      • Beginner's Guide to SEO
      • SEO Learning Center
      • Moz Academy
      • MozCon
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Digital Marketers
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • The Moz Story
      • New Releases
    • Log in
    • Log out
    • Products
      • Moz Pro

        Your all-in-one suite of SEO essentials.

      • Moz Local

        Raise your local SEO visibility with complete local SEO management.

      • STAT

        SERP tracking and analytics for enterprise SEO experts.

      • Moz API

        Power your SEO with our index of over 44 trillion links.

      • Compare SEO Products

        See which Moz SEO solution best meets your business needs.

      • Moz Data

        Power your SEO strategy & AI models with custom data solutions.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • Free SEO Tools
      • Domain Analysis

        Get top competitive SEO metrics like DA, top pages and more.

      • Keyword Explorer

        Find traffic-driving keywords with our 1.25 billion+ keyword index.

      • Link Explorer

        Explore over 40 trillion links for powerful backlink data.

      • Competitive Research

        Uncover valuable insights on your organic search competitors.

      • MozBar

        See top SEO metrics for free as you browse the web.

      • More Free SEO Tools

        Explore all the free SEO tools Moz has to offer.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • Learn SEO
      • Beginner's Guide to SEO

        The #1 most popular introduction to SEO, trusted by millions.

      • SEO Learning Center

        Broaden your knowledge with SEO resources for all skill levels.

      • On-Demand Webinars

        Learn modern SEO best practices from industry experts.

      • How-To Guides

        Step-by-step guides to search success from the authority on SEO.

      • Moz Academy

        Upskill and get certified with on-demand courses & certifications.

      • MozCon

        Save on Early Bird tickets and join us in London or New York City

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • Digital Marketers

        Simplify SEO tasks to save time and grow your traffic.

      • Small Business Solutions

        Uncover insights to make smarter marketing decisions in less time.

      • Agency Solutions

        Earn & keep valuable clients with unparalleled data & insights.

      • Enterprise Solutions

        Gain a competitive edge in the ever-changing world of search.

      • The Moz Story

        Moz was the first & remains the most trusted SEO company.

      • New Releases

        Get the scoop on the latest and greatest from Moz.

      Surface actionable competitive intel
      New Feature

      Surface actionable competitive intel

      Learn More
    • Log in
      • Moz Pro
      • Moz Local
      • Moz Local Dashboard
      • Moz API
      • Moz API Dashboard
      • Moz Academy
    • Avatar
      • Moz Home
      • Notifications
      • Account & Billing
      • Manage Users
      • Community Profile
      • My Q&A
      • My Videos
      • Log Out

    The Moz Q&A Forum

    • Forum
    • Questions
    • Users
    • Ask the Community

    Welcome to the Q&A Forum

    Browse the forum for helpful insights and fresh discussions about all things SEO.

    1. Home
    2. SEO Tactics
    3. Intermediate & Advanced SEO
    4. Robots Disallow Backslash - Is it right command

    Moz Q&A is closed.

    After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.

    Robots Disallow Backslash - Is it right command

    Intermediate & Advanced SEO
    2
    5
    998
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as question
    Log in to reply
    This topic has been deleted. Only users with question management privileges can see it.
    • Modi
      Modi last edited by

      Bit skeptical, as due to dynamic url and some other linkage issue, google has crawled url with backslash and asterisk character

      ex - www.xyz.com/\/index.php?option=com_product

      www.xyz.com/\"/index.php?option=com_product

      Now %5c is the encoded version of \ - backslash & %22 is encoded version of asterisk

      Need to know for command :-

      User-agent: *   Disallow: \As am disallowing all backslash url through this - will it only remove the backslash url which are duplicates or the entire site,

      1 Reply Last reply Reply Quote 0
      • Modi
        Modi @Everett last edited by

        Thanks, you seem lucky to me.. Almost after 2 month i have got the code for making all these encoded url's redirect correctly. Finally, now if one types

        http://www.mycarhelpline.com/\"/index.php?option=com_latestnews&view=list&Itemid=10

        then he's redirected through 301 to the correct url

        http://www.mycarhelpline.com/index.php?option=com_latestnews&view=list&Itemid=10

        1 Reply Last reply Reply Quote 0
        • Everett
          Everett @Modi last edited by

          Hello Gagan,

          I think the best way to handle this would be using the rel canonical tag or rewriting the URLs to get rid of the parameters and replace them with something more user-friendly.

          The rel canonical tag would be the easiest way out of those two. I notice the version without the encoding (e.g. http://www.mycarhelpline.com/index.php?option=com_latestnews&view=list&Itemid=10 ) have a rel canonical tag that correctly references itself as the canonical version. However, the encoded URLs (e.g. http://www.mycarhelpline.com/\"/index.php?option=com_latestnews&view=list&Itemid=10) which is actually http://www.mycarhelpline.com/\"/index.php?option=com_latestnews&view=list&Itemid=10 does NOT have a rel canonical tag.

          If the version with the backslash had a rel canonical tag stating that the following URL is canonical it would solve your issue, I think.
          Canonical URL:
          http://www.mycarhelpline.com/index.php?option=com_latestnews&view=list&Itemid=10

          Modi 1 Reply Last reply Reply Quote 1
          • Modi
            Modi @Everett last edited by

            Sure, If i show you some url they are crawled as :-

            Sample Incorrect URLs crawled and reported as duplicate one in Google Webmaster & Moz too

            |

            http://www.mycarhelpline.com/\"/index.php?option=com_latestnews&view=list&Itemid=10

            | http://www.mycarhelpline.com/\"/index.php?option=com_newcar&view=category&Itemid=2 |

            |

            Correct URL

            http://www.mycarhelpline.com/index.php?option=com_latestnews&view=list&Itemid=10

            http://www.mycarhelpline.com/index.php?option=com_newcar&view=search&Itemid=2

            What we found online

            Since URLs often contain characters outside the ASCII set, the URL has to be converted into a valid ASCII format. URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits. URLs cannot contain spaces.

            %22 reflects - " and %5c as \ (forward slash)

            We intend to remove these duplicate one created having %22 and %5c within them..

            Many thanks

            Everett 1 Reply Last reply Reply Quote 0
            • Everett
              Everett last edited by

              I am not entirely sure I understood your question as intended, but I will do my best to answer.

              I would not put this in my robots.txt flie because it could possibly be misunderstood as a forward slash, in which case your entire domain would be blocked:

              Disallow: \

              We can possibly provide you with some alternative suggestions on how to keep Google from crawling those pages if you could share some real examples.

              It may be best to rewrite/redirect those URls instead since they don't seem to be the canonical version you intend to be presented to the user.

              Modi 1 Reply Last reply Reply Quote 0
              • 1 / 1
              • First post
                Last post

              Got a burning SEO question?

              Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.


              Start my free trial


              Browse Questions

              Explore more categories

              • Moz Tools

                Chat with the community about the Moz tools.

              • SEO Tactics

                Discuss the SEO process with fellow marketers

              • Community

                Discuss industry events, jobs, and news!

              • Digital Marketing

                Chat about tactics outside of SEO

              • Research & Trends

                Dive into research and trends in the search industry.

              • Support

                Connect on product support and feature requests.

              • See all categories

              Related Questions

              • JamesHancocks1

                Disallow: /jobs/? is this stopping the SERPs from indexing job posts

                Hi,
                I was wondering what this would be used for as it's in the Robots.exe of a recruitment agency website that posts jobs. Should it be removed? Disallow: /jobs/?
                Disallow: /jobs/page/*/ Thanks in advance.
                James

                Intermediate & Advanced SEO | | JamesHancocks1
                0
              • Gabriele_Layoutweb

                If I block a URL via the robots.txt - how long will it take for Google to stop indexing that URL?

                If I block a URL via the robots.txt - how long will it take for Google to stop indexing that URL?

                Intermediate & Advanced SEO | | Gabriele_Layoutweb
                0
              • EvansHunt

                Wildcarding Robots.txt for Particular Word in URL

                Hey All, So I know that this isn't a standard robots.txt, I'm aware of how to block or wildcard certain folders but I'm wondering whether it's possible to block all URL's with a certain word in it? We have a client that was hacked a year ago and now they want us to help remove some of the pages that were being autogenerated with the word "viagra" in it. I saw this article and tried implementing it https://builtvisible.com/wildcards-in-robots-txt/ and it seems that I've been able to remove some of the URL's (although I can't confirm yet until I do a full pull of the SERPs on the domain). However, when I test certain URL's inside of WMT it still says that they are allowed which makes me think that it's not working fully or working at all. In this case these are the lines I've added to the robots.txt Disallow: /*&viagra Disallow: /*&Viagra I know I have the solution of individually requesting URL's to be removed from the index but I want to see if anybody has every had success with wildcarding URL's with a certain word in their robots.txt? The individual URL route could be very tedious. Thanks! Jon

                Intermediate & Advanced SEO | | EvansHunt
                0
              • khi5

                "noindex, follow" or "robots.txt" for thin content pages

                Does anyone have any testing evidence what is better to use for pages with thin content, yet important pages to keep on a website? I am referring to content shared across multiple websites (such as e-commerce, real estate etc). Imagine a website with 300 high quality pages indexed and 5,000 thin product type pages, which are pages that would not generate relevant search traffic. Question goes: Does the interlinking value achieved by "noindex, follow" outweigh the negative of Google having to crawl all those "noindex" pages? With robots.txt one has Google's crawling focus on just the important pages that are indexed and that may give ranking a boost. Any experiments with insight to this would be great. I do get the story about "make the pages unique", "get customer reviews and comments" etc....but the above question is the important question here.

                Intermediate & Advanced SEO | | khi5
                0
              • monster99

                How to Disallow Tag Pages With Robot.txt

                Hi i have a site which i'm dealing with that has tag pages for instant - http://www.domain.com/news/?tag=choice How can i exclude these tag pages (about 20+ being crawled and indexed by the search engines with robot.txt Also sometimes they're created dynamically so i want something which automatically excludes tage pages from being crawled and indexed. Any suggestions? Cheers, Mark

                Intermediate & Advanced SEO | | monster99
                0
              • udemy

                Disallowed Pages Still Showing Up in Google Index. What do we do?

                We recently disallowed a wide variety of pages for www.udemy.com which we do not want google indexing (e.g., /tags or /lectures). Basically we don't want to spread our link juice around to all these pages that are never going to rank. We want to keep it focused on our core pages which are for our courses. We've added them as disallows in robots.txt, but after 2-3 weeks google is still showing them in it's index. When we lookup "site: udemy.com", for example, Google currently shows ~650,000 pages indexed... when really it should only be showing ~5,000 pages indexed. As another example, if you search for "site:udemy.com/tag", google shows 129,000 results. We've definitely added "/tag" into our robots.txt properly, so this should not be happening... Google showed be showing 0 results. Any ideas re: how we get Google to pay attention and re-index our site properly?

                Intermediate & Advanced SEO | | udemy
                0
              • ENSO

                Robots.txt is blocking Wordpress Pages from Googlebot?

                I have a robots.txt file on my server, which I did not develop, it was done by the web designer at the company before me. Then there is a word press plugin that generates a robots.txt file. How Do I unblock all the wordpress pages from googlebot?

                Intermediate & Advanced SEO | | ENSO
                0
              • nicole.healthline

                Robots.txt & url removal vs. noindex, follow?

                When de-indexing pages from google, what are the pros & cons of each of the below two options: robots.txt & requesting url removal from google webmasters Use the noindex, follow meta tag on all doctor profile pages Keep the URLs in the Sitemap file so that Google will recrawl them and find the noindex meta tag make sure that they're not disallowed by the robots.txt file

                Intermediate & Advanced SEO | | nicole.healthline
                0

              Get started with Moz Pro!

              Unlock the power of advanced SEO tools and data-driven insights.

              Start my free trial
              Products
              • Moz Pro
              • Moz Local
              • Moz API
              • Moz Data
              • STAT
              • Product Updates
              Moz Solutions
              • SMB Solutions
              • Agency Solutions
              • Enterprise Solutions
              Free SEO Tools
              • Domain Authority Checker
              • Link Explorer
              • Keyword Explorer
              • Competitive Research
              • Brand Authority Checker
              • Local Citation Checker
              • MozBar Extension
              • MozCast
              Resources
              • Blog
              • SEO Learning Center
              • Help Hub
              • Beginner's Guide to SEO
              • How-to Guides
              • Moz Academy
              • API Docs
              About Moz
              • About
              • Team
              • Careers
              • Contact
              Why Moz
              • Case Studies
              • Testimonials
              Get Involved
              • Become an Affiliate
              • MozCon
              • Webinars
              • Practical Marketer Series
              • MozPod
              Connect with us

              Contact the Help team

              Join our newsletter
              Moz logo
              © 2021 - 2025 SEOMoz, Inc., a Ziff Davis company. All rights reserved. Moz is a registered trademark of SEOMoz, Inc.
              • Accessibility
              • Terms of Use
              • Privacy

              Looks like your connection to Moz was lost, please wait while we try to reconnect.